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Received November 14, 2008; Revision received April 1, 2009
The effect of 50 µM salicylic acid on soluble proteins of pea (Pisum sativum L.) leaves was studied by proteomic analysis. Thirty-two salicylate-induced proteins were found, and 13 of these were identified using MALDI TOF MS. Salicylate-induced increased content was shown for the first time for the family 18 glycoside hydrolase, α-amylase, 33 kDa protein of photosystem II, lipid-desaturase-like protein, and glutamine amidotransferase. Increased content of protective proteins of direct antipathogenic action such as chitinase and β-1,3-glucanases was also noted.
KEY WORDS: salicylic acid, proteomic investigations, salicylate-induced proteins